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Prerequisites

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Adding the webhook handler

The webhook handler in this guide will be an API route.

This will be different depending on whether you are using the Next.js pages router or the app router.

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Pages router: creating the webhook handler

Create a new file pages/api/webhook-handler.ts or pages/api/webhook-hander.js.

In your new file, add the following code:

/pages/api/webhook-handler.ts
import { helloWorldTask } from "@/trigger/example";
import { tasks } from "@trigger.dev/sdk/v3";
import type { NextApiRequest, NextApiResponse } from "next";

export default async function handler(req: NextApiRequest, res: NextApiResponse) {
  // Parse the webhook payload
  const payload = req.body;

  // Trigger the helloWorldTask with the webhook data as the payload
  await tasks.trigger<typeof helloWorldTask>("hello-world", payload);

  res.status(200).json({ message: "OK" });
}

This code will handle the webhook payload and trigger the ‘Hello World’ task.

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App router: creating the webhook handler

Create a new file in the app/api/webhook-handler/route.ts or app/api/webhook-handler/route.js.

In your new file, add the following code:

/app/api/webhook-handler/route.ts
import type { helloWorldTask } from "@/trigger/example";
import { tasks } from "@trigger.dev/sdk/v3";
import { NextResponse } from "next/server";

export async function POST(req: Request) {
  // Parse the webhook payload
  const payload = await req.json();

  // Trigger the helloWorldTask with the webhook data as the payload
  await tasks.trigger<typeof helloWorldTask>("hello-world", payload);

  return NextResponse.json("OK", { status: 200 });
}

This code will handle the webhook payload and trigger the ‘Hello World’ task.

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Triggering the task locally

Now that you have your webhook handler set up, you can trigger the ‘Hello World’ task from it. We will do this locally using cURL.

1

Run your Next.js app and the Trigger.dev dev server

First, run your Next.js app.

Then, open up a second terminal window and start the Trigger.dev dev server:

2

Trigger the webhook with some dummy data

To send a POST request to your webhook handler, open up a terminal window on your local machine and run the following command:

If http://localhost:3000 isn’t the URL of your locally running Next.js app, replace the URL in the below command with that URL instead.

curl -X POST -H "Content-Type: application/json" -d '{"Name": "John Doe", "Age": "87"}' http://localhost:3000/api/webhook-handler

This will send a POST request to your webhook handler, with a JSON payload.

3

Check the task ran successfully

After running the command, you should see a successful dev run and a 200 response in your terminals.

If you now go to your Trigger.dev dashboard, you should also see a successful run for the ‘Hello World’ task, with the payload you sent, in this case; {"name": "John Doe", "age": "87"}.

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Learn more about Vercel and Trigger.dev

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Walk-through guides from development to deployment

Next.js - setup guide

Learn how to setup Trigger.dev with Next.js, using either the pages or app router.

Next.js - triggering tasks using webhooks

Learn how to create a webhook handler for incoming webhooks in a Next.js app, and trigger a task from it.

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Task examples

Vercel sync environment variables

Learn how to automatically sync environment variables from your Vercel projects to Trigger.dev.

Vercel AI SDK

Learn how to use the Vercel AI SDK, which is a simple way to use AI models from different providers, including OpenAI, Anthropic, Amazon Bedrock, Groq, Perplexity etc.

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